CBRS Priority Spectrum Leasing for On-Demand Interference Protection
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Solution Overview
Problem
Current technological mechanisms lack a flexible and efficient way for network operators to access Citizens Broadband Radio Service (CBRS) Priority Access Licenses (PALs), constraining the supply and limiting the ability to mitigate interference and provide higher-tier Service Level Agreements (SLAs) for wireless networks.
Innovation Solution
The implementation of a CBRS-As-A-Service (CAAS) model that provides automated mechanisms for network operators to lease PALs on an as-needed basis, utilizing a spectrum access system (SAS) to dynamically manage spectrum access, integrate smart contracts on a blockchain, and adjust pricing and lease durations based on real-time network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network operators lease PALs through traditional mechanisms, then access to priority spectrum is granted, but flexibility and efficiency are reduced due to rigid ownership requirements
Solution Approach 1:
The patent introduces a spectrum broker as an intermediary entity that facilitates spectrum sharing between PAL holders and network operators. The broker manages lease agreements, coordinates spectrum access, and handles pricing dynamically, eliminating the need for direct complex negotiations between parties while providing flexible access to priority spectrum tiers.
Solution Approach 2:
The system implements dynamic pricing and lease duration adjustments based on real-time network conditions, spectrum utilization, and demand. This allows the spectrum access mechanism to adapt flexibly to changing conditions rather than relying on static, rigid lease terms, thereby improving versatility without excessive complexity.
2Reliability
If PALs are owned by network operators, then guaranteed service level agreements can be provided, but the quantity of available PALs is limited
Solution Approach 1:
The patent enables PAL holders to lease their licenses to multiple network operators simultaneously across different geographic areas and time periods. This multi-functionality allows the same PAL resource to serve multiple purposes and users, effectively increasing the quantity of available priority spectrum access while maintaining the reliability guarantees through structured lease agreements managed by the spectrum broker.
Solution Approach 2:
The system allows for temporary transfer of PAL usage rights through leasing, where the PAL holder can effectively 'discard' usage rights to lessees during specific periods and 'recover' them when the lease expires or conditions change. This dynamic allocation increases the effective quantity of available PAL access without requiring additional spectrum licenses.
3Productivity
If automated lease mechanisms are implemented, then efficiency and speed are improved, but system complexity increases
Solution Approach 1:
The patent implements automated systems where the spectrum broker, network operators, and PAL holders can independently manage lease agreements, pricing adjustments, and spectrum access through self-service mechanisms. The system automatically matches demand with supply, calculates pricing based on predefined algorithms, and executes lease agreements without requiring extensive manual intervention, thereby improving efficiency while containing complexity through automation rather than manual processes.
Data Source
AI summary
Embodiments include systems and methods for flexible access to priority access tiers in shared radio frequency (RF) spectrum bands. An example embodiment provides automated mechanisms for network operators to obtain the benefits of using a priority access license (PAL) in the Citizens Broadband Radio Service (CBRS), including access to such protected frequency bands, on an as-needed and/or on-demand basis without having to own a PAL (CBRS-As-A-Service (CAAS)). This CAAS thereby provides an “interference insurance” service to network operators. In response to receiving an indication of the at least one condition being met (e.g., a current interference level surpassing a threshold), a priority access tier license controller automatically causes the wireless network operator to be able to operate a wireless network using the PAL to the shared frequency spectrum band and thus be protected from RF interference by lower priority access users.